1999-2000 GMC Yukon 5.7L Custom Tuning Tune Service:Traditional [$355] 15-20ft-lbs of torque gains out

15-20ft-lbs of torque gains out of the 4

With years of experience in custom GM tuning

Using the scan cable

All 2010+ owners are strongly encouraged to use a minimum of 89 octane at all times due to compression ratio

Black Bear Performance offers our AutoCal custom tuning service for your 2015-2020 GMC Yukon Denali 6

1999-2000 GMC Yukon 5.7L Custom Tuning Tune Service:Traditional [$355] 15-20ft-lbs of torque gains outBlack Bear Performance offers three different levels of custom tuning for your 1999 2000 GMC Yukon 5. 7L. From bone stock to heavily modified, we can help your engine perform as optimally as possible. We tend to see power gains in the 15 20hp 20 25ft lbs range and 1 2mpg improvement, depending on vehicle condition and configuration. Other improvements range from improved idle smoothness to better shift performance, improved towing and improved